Abstract: One or more example embodiments relates to a method for controlling a computed tomography system, the method comprising defining an examination region of an examination object; defining a number of interfering structures, wherein an interfering structure is a structure located within a beam path of the computed tomography system and reflects or absorbs X-ray radiation with a strength outside of a tolerance range; calculating beam paths of X-rays of a CT examination of the examination region and ascertaining interference angle ranges of a gantry of the computed tomography system at which the beam paths run through the interfering structure and the examination region; carrying out a CT scan while the gantry rotates, and recording CT data; reconstructing an image dataset from CT data of the recorded CT data excluding the ascertained interference angle ranges; and outputting the image dataset.

Abstract: A method for providing thermal conductivity data relating to an anatomical structure, comprises: receiving first spectral computed tomography data relating to the anatomical structure; calculating a fat map of the anatomical structure and a water map of the anatomical structure based on the first spectral computed tomography data; calculating the thermal conductivity data relating to the anatomical structure based on the fat map and the water map; and providing the thermal conductivity data.

Abstract: A method for determining a quantitative result CT parameter map in a region of interest of an object under examination is described. The method includes acquiring a sequence of quantitative input CT parameter maps for at least two predetermined times, the sequence being generated by a contrast-enhanced spectral multiphase CT of the region of interest; receiving a sequence of contrast-enhanced MRI image datasets, the MRI datasets having a higher temporal resolution than the sequence of input CT parameter maps; determining a relation between the MRI image datasets and the input CT parameter maps; and determining the result CT parameter map based on the determined relation and the MRI image datasets for at least one additional time, the at least one additional time being different from the predetermined time.

Abstract: One or more example embodiments of the present invention relates to a method for providing vessel wall-related data. The method includes receiving spectral computed tomography data of an examination region, the examination region having a vessel; calculating a representation of a vessel wall of the vessel and at least one parameter map of the examination region based on the spectral computed tomography data; calculating the vessel wall-related data based on the representation of the vessel wall and the at least one parameter map of the examination region; and providing the vessel wall-related data.

Abstract: At least one vascular tree supplying at least a part of the hollow organ in the computed tomography dataset is segmented, and a tree structure up to an order possible based on the blood vessel segmentation result is determined from a blood vessel segmentation result. Perfusion information for each edge in the tree structure is assigned as at least one of the computed tomography data assigned to the blood vessel segment or at least one value derived therefrom. Adjacent hollow organ segments of the hollow organ are defined based on supply by adjacent blood vessels in the tree structure, and the tree structure and the perfusion information are analyzed to determine hemodynamic information to assign to hollow organ segments. At least a part of the hemodynamic information in at least one of the computed tomography dataset or a visualization dataset derived therefrom is then visualized.

Abstract: One or more example embodiments relates to a method for controlling a computed tomography system, the method comprising defining an examination region of an examination object; defining a number of interfering structures, wherein an interfering structure is a structure located within a beam path of the computed tomography system and reflects or absorbs X-ray radiation with a strength outside of a tolerance range; calculating beam paths of X-rays of a CT examination of the examination region and ascertaining interference angle ranges of a gantry of the computed tomography system at which the beam paths run through the interfering structure and the examination region; carrying out a CT scan while the gantry rotates, and recording CT data; reconstructing an image dataset from CT data of the recorded CT data excluding the ascertained interference angle ranges; and outputting the image dataset.

Abstract: An operating method comprises: triggering administration of a first contrast medium application for presaturation of the body region with contrast medium, wherein the first contrast medium application is administered to achieve a desired equilibrium concentration; triggering administration of a second contrast medium application in the form of a bolus larger than in the first contrast medium application; recording spectral image data at at least two different beam energies; reconstructing images from the spectral image data; and outputting the images.

Abstract: A method for providing supply data relating to supply to a parenchyma, comprises: receiving first imaging data, wherein the first imaging data relates to the parenchyma and/or a vascular structure that serves to supply the parenchyma; receiving reference data for the supply to the parenchyma; calculating the supply data based on the first imaging data and the reference data, wherein the supply data relates to the supply to the parenchyma; and providing the supply data.

Abstract: A method of determining a concentration of a chemical substance in a body of a patient includes adding an additive quantity of an additive material to a base quantity of a chemical substance to obtain a mixed composition having a predetermined density and delivering the mixed composition to the body of the patient. The method also includes obtaining an image of at least a portion of the body of the patient and determining a concentration of the chemical substance in the at least a portion of the body of the patient based on the image and the predetermined density of the mixed composition.

Abstract: A method for determining a quantitative result CT parameter map in a region of interest of an object under examination is described. The method includes acquiring a sequence of quantitative input CT parameter maps for at least two predetermined times, the sequence being generated by a contrast-enhanced spectral multiphase CT of the region of interest; receiving a sequence of contrast-enhanced MRI image datasets, the MRI datasets having a higher temporal resolution than the sequence of input CT parameter maps; determining a relation between the MRI image datasets and the input CT parameter maps; and determining the result CT parameter map based on the determined relation and the MRI image datasets for at least one additional time, the at least one additional time being different from the predetermined time.

Abstract: One or more example embodiments of the present invention relates to a method for providing vessel wall-related data. The method includes receiving spectral computed tomography data of an examination region, the examination region having a vessel; calculating a representation of a vessel wall of the vessel and at least one parameter map of the examination region based on the spectral computed tomography data; calculating the vessel wall-related data based on the representation of the vessel wall and the at least one parameter map of the examination region; and providing the vessel wall-related data.

Abstract: A method for providing thermal conductivity data relating to an anatomical structure, comprises: receiving first spectral computed tomography data relating to the anatomical structure; calculating a fat map of the anatomical structure and a water map of the anatomical structure based on the first spectral computed tomography data; calculating the thermal conductivity data relating to the anatomical structure based on the fat map and the water map; and providing the thermal conductivity data.

Abstract: A method is for computed tomography imaging. In an embodiment, the method includes provisioning a CT data set of an object, the CT data set being previously recorded via a multispectral recording method; suppressing a contrast, caused by a tissue type, and generating a contrast-suppressed data set from the CT data set provisioned; and analyzing at least the contrast-suppressed data set generated or a data set generated via a machine learning algorithm based on the contrast-suppressed data set, the analyzing being configured to identify at least one change in the tissue type. A corresponding device, a control device for a computed tomography system or a diagnosis system, and a diagnosis system and a computed tomography system are also disclosed.

Abstract: The present disclosure relates to transformers. Various embodiments of the teachings herein may include a coating of an insulation body of a dry transformer. For example, the electrical winding may include multiple windings of a winding conductor wound to form a coil. The coil has been embedded into a solid insulation body. In some embodiments, a coating of an electrically conductive material, comprising a resin matrix and microscale filler, has been applied to at least one surface of the insulation body.

Abstract: At least one vascular tree supplying at least a part of the hollow organ in the computed tomography dataset is segmented, and a tree structure up to an order possible based on the blood vessel segmentation result is determined from a blood vessel segmentation result. Perfusion information for each edge in the tree structure is assigned as at least one of the computed tomography data assigned to the blood vessel segment or at least one value derived therefrom. Adjacent hollow organ segments of the hollow organ are defined based on supply by adjacent blood vessels in the tree structure, and the tree structure and the perfusion information are analyzed to determine hemodynamic information to assign to hollow organ segments. At least a part of the hemodynamic information in at least one of the computed tomography dataset or a visualization dataset derived therefrom is then visualized.

Abstract: A method is for providing decision-supporting data. In an embodiment, the method includes receiving photon-counting computed tomography data relating to an examination region; determining a location of a thrombus in the examination region, based on the photon-counting computed tomography data received; generating the decision-supporting data, relating to at least one of the thrombus and a vascular wall in a region of the thrombus, based on the photon-counting computed tomography data received and the location of the thrombus determined; and providing the decision-supporting data generated.

Abstract: The present disclosure relates to electrical windings for a dry transformer which allows construction of a compact dry transformer even in relatively high voltage classes. For this purpose, the electrical winding has multiple windings of a winding conductor wound to form a coil. The coil has been embedded into a solid insulation body. In some embodiments, a coating of an electrically conductive material, comprising a resin matrix with at least 0.05% by weight of nanoscale filler, has been applied to at least one surface of the insulation body.

Abstract: An autonomous catheterization assembly includes a catheter arrangement for insertion into the vascular system of a patient. In an embodiment, the catheter arrangement includes a sensor arrangement to sense a condition in the interior of a vessel of the vascular system, a shape adjustment device arranged in a distal portion of the catheter arrangement, and an actuator arrangement to control the shape adjustment device to adjust the shape and/or orientation of the distal portion of the catheter arrangement. The autonomous catheterization assembly further includes a propulsion assembly to propel elements of the catheter arrangement through the vascular system of the patient; a route computation module to compute a route through the vascular system to a target; and a control unit to actuate the propulsion assembly based upon the computed route and/or in response to a sensed condition in the interior of a vessel of the vascular system.

Abstract: The present disclosure relates to transformers. Various embodiments of the teachings herein may include a coating of an insulation body of a dry transformer. For example, the electrical winding may include multiple windings of a winding conductor wound to form a coil. The coil has been embedded into a solid insulation body. In some embodiments, a coating of an electrically conductive material, comprising a resin matrix and microscale filler, has been applied to at least one surface of the insulation body.

Abstract: A method is for output of position information of a medical instrument, configured to penetrate at least partly an area of the body of a patient. A structure image, an instrument image and an operation scene image are registered with one another. A registered structure image, a registered instrument image and a registered operation scene image are produced from the registration. An overlay image is displayed with a VR or AR display facility, including at least parts of the registered structure image of the registered operation scene image (BrO)—or the real view of the corresponding part of the real area of the body—and of the registered instrument image. A corresponding image generation system is also disclosed.